[FFmpeg-devel] [PATCH 1/4] tests/checkasm: add overflow test for hevc_add_res

Linjie Fu linjie.fu at intel.com
Wed Dec 11 10:45:36 EET 2019

Add overflow test for hevc_add_res when int16_t coeff = -32768.
The result of C is good, while ASM is not.

To verify:
    make fate-checkasm-hevc_add_res
    ffmpeg/tests/checkasm/checkasm --test=hevc_add_res

./checkasm --test=hevc_add_res
checkasm: using random seed 679391863
    hevc_add_res_4x4_8_mmxext (hevc_add_res.c:69)
  - hevc_add_res.add_residual [FAILED]
    hevc_add_res_8x8_8_sse2 (hevc_add_res.c:69)
    hevc_add_res_16x16_8_sse2 (hevc_add_res.c:69)
    hevc_add_res_32x32_8_sse2 (hevc_add_res.c:69)
  - hevc_add_res.add_residual [FAILED]
    hevc_add_res_8x8_8_avx (hevc_add_res.c:69)
    hevc_add_res_16x16_8_avx (hevc_add_res.c:69)
    hevc_add_res_32x32_8_avx (hevc_add_res.c:69)
  - hevc_add_res.add_residual [FAILED]
    hevc_add_res_32x32_8_avx2 (hevc_add_res.c:69)
  - hevc_add_res.add_residual [FAILED]
checkasm: 8 of 14 tests have failed

Signed-off-by: Xu Guangxin <guangxin.xu at intel.com>
Signed-off-by: Linjie Fu <linjie.fu at intel.com>
 tests/checkasm/hevc_add_res.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/checkasm/hevc_add_res.c b/tests/checkasm/hevc_add_res.c
index e92c6b4..a6e3b8a 100644
--- a/tests/checkasm/hevc_add_res.c
+++ b/tests/checkasm/hevc_add_res.c
@@ -58,6 +58,7 @@ static void check_add_res(HEVCDSPContext h, int bit_depth)
         randomize_buffers(res0, size);
         randomize_buffers2(dst0, size);
+        res0[0] = 0x8000;// overflow test
         memcpy(res1, res0, sizeof(*res0) * size);
         memcpy(dst1, dst0, sizeof(int16_t) * size);

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